<?php
namespace phpArray;
function study(){
	echo "PHP数组\n";
	$people = array('Lily','Slim','jone');
	$age = array('Lily'=>32,'Slim'=>22,'Jone'=>13);
	print_r($age);
	//var_dump($age);
	echo count($people);
	print_r(array_change_key_case($age),CASE_LOWER);
	print_r(array_change_key_case($age),CASE_UPPER);
	print_r(array_chunk($age,2));
}
?>
